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P2P: Delay send_action call if p2p_scan is in progress

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In order to avoid confusing the driver with a new remain-on-channel
request, delay sending of a new Action frame if the driver indicates
Action frame RX diromg a scan.
This commit is contained in:
Jouni Malinen 2010-10-20 19:41:20 +03:00 committed by Jouni Malinen
parent 0b8889d8e5
commit 3f9285ff19
7 changed files with 107 additions and 64 deletions
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64
src/p2p/p2p.c
View file

@ -691,6 +691,25 @@ static int p2p_run_after_scan(struct p2p_data *p2p)
struct p2p_device *dev;
enum p2p_after_scan op;
if (p2p->after_scan_tx) {
int ret;
/* TODO: schedule p2p_run_after_scan to be called from TX
* status callback(?) */
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Send pending "
"Action frame at p2p_scan completion");
ret = p2p->cfg->send_action(p2p->cfg->cb_ctx,
p2p->after_scan_tx->freq,
p2p->after_scan_tx->dst,
p2p->after_scan_tx->src,
p2p->after_scan_tx->bssid,
(u8 *) (p2p->after_scan_tx + 1),
p2p->after_scan_tx->len,
p2p->after_scan_tx->wait_time);
os_free(p2p->after_scan_tx);
p2p->after_scan_tx = NULL;
return 1;
}
op = p2p->start_after_scan;
p2p->start_after_scan = P2P_AFTER_SCAN_NOTHING;
switch (op) {
@ -1831,6 +1850,7 @@ void p2p_deinit(struct p2p_data *p2p)
os_free(p2p->cfg->dev_name);
os_free(p2p->groups);
wpabuf_free(p2p->sd_resp);
os_free(p2p->after_scan_tx);
os_free(p2p);
}
@ -2675,11 +2695,9 @@ int p2p_presence_req(struct p2p_data *p2p, const u8 *go_interface_addr,
return -1;
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, go_interface_addr,
own_interface_addr,
go_interface_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
{
if (p2p_send_action(p2p, freq, go_interface_addr, own_interface_addr,
go_interface_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}
@ -2776,9 +2794,8 @@ fail:
return;
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, rx_freq, sa, da, da,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0) {
if (p2p_send_action(p2p, rx_freq, sa, da, da,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}
@ -3062,3 +3079,34 @@ void p2p_update_channel_list(struct p2p_data *p2p, struct p2p_channels *chan)
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Update channel list");
os_memcpy(&p2p->cfg->channels, chan, sizeof(struct p2p_channels));
}
int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
const u8 *src, const u8 *bssid, const u8 *buf,
size_t len, unsigned int wait_time)
{
if (p2p->p2p_scan_running) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Delay Action "
"frame TX until p2p_scan completes");
if (p2p->after_scan_tx) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG, "P2P: Dropped "
"previous pending Action frame TX");
os_free(p2p->after_scan_tx);
}
p2p->after_scan_tx = os_malloc(sizeof(*p2p->after_scan_tx) +
len);
if (p2p->after_scan_tx == NULL)
return -1;
p2p->after_scan_tx->freq = freq;
os_memcpy(p2p->after_scan_tx->dst, dst, ETH_ALEN);
os_memcpy(p2p->after_scan_tx->src, src, ETH_ALEN);
os_memcpy(p2p->after_scan_tx->bssid, bssid, ETH_ALEN);
p2p->after_scan_tx->len = len;
p2p->after_scan_tx->wait_time = wait_time;
os_memcpy(p2p->after_scan_tx + 1, buf, len);
return 0;
}
return p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, dst, src, bssid,
buf, len, wait_time);
}

15
src/p2p/p2p_dev_disc.c
View file

@ -99,11 +99,9 @@ int p2p_send_dev_disc_req(struct p2p_data *p2p, struct p2p_device *dev)
os_memcpy(p2p->pending_client_disc_addr, dev->p2p_device_addr,
ETH_ALEN);
p2p->pending_action_state = P2P_PENDING_DEV_DISC_REQUEST;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, dev->oper_freq,
go->p2p_device_addr, p2p->cfg->dev_addr,
go->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 1000) < 0)
{
if (p2p_send_action(p2p, dev->oper_freq, go->p2p_device_addr,
p2p->cfg->dev_addr, go->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 1000) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
wpabuf_free(req);
@ -160,10 +158,9 @@ static void p2p_send_dev_disc_resp(struct p2p_data *p2p, u8 dialog_token,
MAC2STR(addr), status, freq);
p2p->pending_action_state = P2P_PENDING_DEV_DISC_RESPONSE;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, addr,
p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0) {
if (p2p_send_action(p2p, freq, addr, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}

21
src/p2p/p2p_go_neg.c
View file

@ -209,11 +209,9 @@ int p2p_connect_send(struct p2p_data *p2p, struct p2p_device *dev)
p2p->pending_action_state = P2P_PENDING_GO_NEG_REQUEST;
p2p->go_neg_peer = dev;
dev->flags |= P2P_DEV_WAIT_GO_NEG_RESPONSE;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dev->p2p_device_addr, p2p->cfg->dev_addr,
dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
{
if (p2p_send_action(p2p, freq, dev->p2p_device_addr,
p2p->cfg->dev_addr, dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
/* Use P2P find to recover and retry */
@ -616,10 +614,9 @@ fail:
} else
p2p->pending_action_state =
P2P_PENDING_GO_NEG_RESPONSE_FAILURE;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, sa,
p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0) {
if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}
@ -982,10 +979,8 @@ fail:
freq = rx_freq;
else
freq = dev->listen_freq;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, sa,
p2p->cfg->dev_addr, sa,
wpabuf_head(conf), wpabuf_len(conf), 200) <
0) {
if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr, sa,
wpabuf_head(conf), wpabuf_len(conf), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
p2p_go_neg_failed(p2p, dev, -1);

14
src/p2p/p2p_i.h
View file

@ -113,6 +113,16 @@ struct p2p_sd_query {
struct wpabuf *tlvs;
};
struct p2p_pending_action_tx {
unsigned int freq;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
u8 bssid[ETH_ALEN];
size_t len;
unsigned int wait_time;
/* Followed by len octets of the frame */
};
/**
* struct p2p_data - P2P module data (internal to P2P module)
*/
@ -351,6 +361,7 @@ struct p2p_data {
P2P_AFTER_SCAN_CONNECT
} start_after_scan;
u8 after_scan_peer[ETH_ALEN];
struct p2p_pending_action_tx *after_scan_tx;
struct p2p_group **groups;
size_t num_groups;
@ -597,5 +608,8 @@ int dev_type_list_match(const u8 *dev_type, const u8 *req_dev_type[],
size_t num_req_dev_type);
struct wpabuf * p2p_build_probe_resp_ies(struct p2p_data *p2p);
void p2p_build_ssid(struct p2p_data *p2p, u8 *ssid, size_t *ssid_len);
int p2p_send_action(struct p2p_data *p2p, unsigned int freq, const u8 *dst,
const u8 *src, const u8 *bssid, const u8 *buf,
size_t len, unsigned int wait_time);
#endif /* P2P_I_H */

15
src/p2p/p2p_invitation.c
View file

@ -271,10 +271,9 @@ fail:
p2p->inv_op_freq = op_freq;
p2p->pending_action_state = P2P_PENDING_INVITATION_RESPONSE;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, sa,
p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0) {
if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}
@ -357,11 +356,9 @@ int p2p_invite_send(struct p2p_data *p2p, struct p2p_device *dev,
p2p->pending_action_state = P2P_PENDING_INVITATION_REQUEST;
p2p->invite_peer = dev;
dev->invitation_reqs++;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dev->p2p_device_addr, p2p->cfg->dev_addr,
dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
{
if (p2p_send_action(p2p, freq, dev->p2p_device_addr,
p2p->cfg->dev_addr, dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
/* Use P2P find to recover and retry */

15
src/p2p/p2p_pd.c
View file

@ -165,10 +165,9 @@ out:
return;
}
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq, sa,
p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0) {
if (p2p_send_action(p2p, freq, sa, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
}
@ -292,11 +291,9 @@ int p2p_send_prov_disc_req(struct p2p_data *p2p, struct p2p_device *dev,
return -1;
p2p->pending_action_state = P2P_PENDING_PD;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dev->p2p_device_addr, p2p->cfg->dev_addr,
dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
{
if (p2p_send_action(p2p->cfg->cb_ctx, freq, dev->p2p_device_addr,
p2p->cfg->dev_addr, dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 200) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
wpabuf_free(req);

27
src/p2p/p2p_sd.c
View file

@ -149,9 +149,8 @@ static void p2p_send_gas_comeback_req(struct p2p_data *p2p, const u8 *dst,
return;
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dst, p2p->cfg->dev_addr, dst,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
if (p2p_send_action(p2p, freq, dst, p2p->cfg->dev_addr, dst,
wpabuf_head(req), wpabuf_len(req), 200) < 0)
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
@ -286,11 +285,9 @@ int p2p_start_sd(struct p2p_data *p2p, struct p2p_device *dev)
p2p->sd_query = query;
p2p->pending_action_state = P2P_PENDING_SD;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dev->p2p_device_addr, p2p->cfg->dev_addr,
dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 5000) < 0)
{
if (p2p_send_action(p2p->cfg->cb_ctx, freq, dev->p2p_device_addr,
p2p->cfg->dev_addr, dev->p2p_device_addr,
wpabuf_head(req), wpabuf_len(req), 5000) < 0) {
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
ret = -1;
@ -452,10 +449,9 @@ void p2p_sd_response(struct p2p_data *p2p, int freq, const u8 *dst,
return;
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, freq,
dst, p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0)
if (p2p_send_action(p2p->cfg->cb_ctx, freq, dst, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0)
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");
@ -691,10 +687,9 @@ void p2p_rx_gas_comeback_req(struct p2p_data *p2p, const u8 *sa,
}
p2p->pending_action_state = P2P_NO_PENDING_ACTION;
if (p2p->cfg->send_action(p2p->cfg->cb_ctx, rx_freq,
sa, p2p->cfg->dev_addr, p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) <
0)
if (p2p_send_action(p2p, rx_freq, sa, p2p->cfg->dev_addr,
p2p->cfg->dev_addr,
wpabuf_head(resp), wpabuf_len(resp), 200) < 0)
wpa_msg(p2p->cfg->msg_ctx, MSG_DEBUG,
"P2P: Failed to send Action frame");